Try this, per ck:
If, when posting a review you get the dreaded 10 character rejection (or something else), please try posting the review first without the "hidden" comments, then edit the review to input those. Failing that, please try to post in a different city forum before reporting the issue to staff. (We can move it.) Include which forum(s) had the issues, please.
Intermittent review posting problems seem to be a persistent pest difficult to duplicate under lab conditions, so therefore daunting to eradicate. See this discussion in the Tech Talk forum: https://home.ourhome2.net/vb/showthread.php?47353-Our-people-still-having-issues-posting-reviews